338 
DR. E. H. GRIFFITHS AND MR. EZER GRIFFITHS ON THE 
The block of metal under examination was suspended in an exhausted glass vessel 
immersed in liquid air or hydrogen. The heat was supplied electrically by a platinum 
wire which also served as a resistance thermometer. It was essential that the 
vacuum should be extremely high, since no correction was applied for losses or gains 
by radiation, &c., and for this reason his values at the lowest temperatures should be 
the most reliable. 
In the cases of silver and lead N ernst has also recorded observations at the 
temperatures of solid C0 2 and ice by the same method. 
In fig. 4 these values are indicated by the letter N, and it will be observed that in 
both cases the smoothed curves through our observations are in general accordance with 
Nernst’s mean values, though his individual observations show marked discrepancies. 
For the same two metals at liquid air temperatures, the mean of several values at 
closely adjacent temperatures is given in Table XIV. 
In the lead group the values are not very concordant, some of the observations 
differ from the smoothed curve by more than 3 per cent. ; the probable error, 
however, is much less than this. Lead, from our own experience, appears to be a 
metal with which it is difficult to obtain concordant results. 
Table XIV.— Nernst’s Values at Low Temperatures. 
A1. 
T. 
32°-4. 
35°-l. 
83°. 
86°. 
OO 
CO 
o 
CO 
c P 
0-25 
0-33 
2-41 
2-52 
2-62 
Cu. 
T. 
23°-5. 
27°-7. 
33°-4. 
87°. 
88°. 
V, 
0-22 
0-32 
0-54 
3-33 
3-38 
Zn*. 
T. 
40°. 
60°. 
80°. 
c. 
1-77 
3-15 
4-09 
A s . 
T. 
35°. 
39° ‘ 1. 
44°-2. 
52° • 6. 
65°. 
77°. 
85°-3. 
C» 
1-58 
1-90 
2-36 
2-85 
3-74 
4-07 
4-37 
Pb. 
T. 
23°. 
bO 
00 
o 
po 
37°-3. 
80°. 
2-96 
3-92 
4-41 
5-69 
* In the case of zinc the actual figures are not recorded, and the above figures have been obtained from 
the curves given in the paper. 
